(410) 451
Landline
Verizon Maryland, Inc.
-
(410) 721
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 774-0
Landline
Level 3 Communications, LLC - AK
2006/02/23
(410) 774-1
Landline
Level 3 Communications, LLC - AK
2006/02/23
(410) 774-2
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/01/21
(410) 774-3
Landline
Core Communications, Inc.- MD
2019/04/12
(410) 774-4
Landline
Level 3 Communications, LLC - AK
2003/07/29
(410) 774-5
Landline
Level 3 Communications, LLC - AK
2005/02/01
(410) 774-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(410) 774-7
Landline
Verizon Maryland, Inc.
2005/09/19
(410) 774-8
Landline
Atx Telecommunications Services, Ltd
2003/02/03
(410) 774-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Level 3 Communications, LLC - AK
-
(443) 292-0
Landline
Core Communications, Inc.- MD
2004/03/01
(443) 292-1
Landline
Teleport Communications America - ID - LLC
2006/07/05
(443) 292-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/09/15
(443) 292-3
Landline
Ctc Communications Corp. - MD
2007/09/17
(443) 292-4
Landline
Comcast IP Phone, LLC
2005/02/10
(443) 292-5
Landline
Level 3 Communications, LLC - AK
2008/01/15
(443) 292-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/05
(443) 292-7
Landline
Broadview Networks, Inc. - MD
2010/09/22
(443) 292-8
Landline
Comcast IP Phone, LLC
2006/11/30
(443) 292-9
Landline
Onvoy, LLC - MD
2012/05/17
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 302-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 302-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 302-2
Landline
Comcast IP Phone, LLC
2008/02/19
(443) 302-3
Landline
Onvoy, LLC - MD
2021/04/21
(443) 302-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 302-5
Landline
Twilio International, Inc.
2020/11/25
(443) 302-6
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 302-7
Landline
Level 3 Communications, LLC - AK
2008/01/31
(443) 302-8
Landline
Onvoy, LLC - MD
2021/04/21
(443) 302-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/05/09
(443) 332-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 332-1
Landline
Bandwidth.com CLEC, LLC - MD
2020/08/13
(443) 332-2
Landline
Bandwidth.com CLEC, LLC - MD
2021/08/03
(443) 332-3
Landline
Terra Nova Telecom Inc.
2020/12/30
(443) 332-4
Landline
Us Lec of Maryland, Inc.
2002/11/07
(443) 332-5
Landline
Bandwidth.com CLEC, LLC - MD
2021/08/03
(443) 332-6
Landline
Paetec Communications, Inc. - CA
2006/03/16
(443) 332-7
Landline
Onvoy, LLC - MD
2021/03/31
(443) 332-8
Landline
Bandwidth.com CLEC, LLC - MD
2020/10/30
(443) 332-9
Landline
Onvoy, LLC - MD
2021/03/31
Landline
Ctc Communications Corp. - MD
-
(443) 584-0
Wireless
Onvoy Spectrum, LLC
2021/04/23
(443) 584-1
Landline
Ctc Communications Corp. - MD
-
(443) 584-2
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 584-3
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
(443) 584-4
Landline
Comcast IP Phone, LLC
2014/06/26
(443) 584-5
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/21
(443) 584-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/21
(443) 584-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(443) 584-8
Landline
Local Access LLC - MD
2016/09/15
(443) 584-9
Landline
Local Access LLC - MD
2015/02/19
(443) 976
Landline
Baltimore-washington Telephone (Bwt)
-
Landline
Core Communications, Inc.- MD
2018/10/15
(667) 295-0
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 295-1
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 295-2
Landline
Peerless Network of Maryland, LLC
2018/10/19
(667) 295-3
Landline
Radiantiq LLC
2021/03/23
(667) 295-4
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 295-5
Landline
Bandwidth.com CLEC, LLC - MD
2020/10/30
(667) 295-6
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 295-7
Landline
Onvoy, LLC - MD
2019/02/06
(667) 295-8
Landline
Onvoy, LLC - MD
2019/02/06
(667) 295-9
Landline
Core Communications, Inc.- MD
2018/10/17
Landline
Peerless Network of Maryland, LLC
2013/04/09
(667) 307-0
Landline
Peerless Network of Maryland, LLC
2013/04/12
(667) 307-1
Landline
Peerless Network of Maryland, LLC
2013/04/12
(667) 307-2
Landline
Telnyx LLC
2017/04/14
(667) 307-3
Unknown
Barr Tell USA, Inc.
2016/11/18
(667) 307-4
Landline
Comcast IP Phone, LLC
2013/10/22
(667) 307-5
Landline
Core Communications, Inc.- MD
2018/05/23
(667) 307-6
Landline
Core Communications, Inc.- MD
2018/05/23
(667) 307-7
Landline
Onvoy, LLC - MD
2016/02/24
(667) 307-8
Landline
Onvoy, LLC - MD
2016/02/24
(667) 307-9
Landline
Local Access LLC - MD
2015/12/07